Previously, Suzle and Jerry had published [[The Spanish Inquisition]] in the 1970s. ''Mainstream'' was their return to fanzine publishing in the 1980s from their new location in Seattle, Washington, U.S.A.

Previously, Suzle and Jerry had published [[The Spanish Inquisition]] in the 1970s. ''Mainstream'' was their return to fanzine publishing in the 1980s from their new location in Seattle, Washington, U.S.A.